Internal Combustion Piston Engines TRIZ Cases

Differential flow measurement determines active product entering a catalytic device, resolving injector drift and sensor failure diagnosis.

High Al ferritic steel absorbs vibration energy via controlled crystal grains, resolving the trade-off between damping capability and oxidation resistance.

Reversing the compressor wheel direction heats intake air through adiabatic compression, shortening engine warm-up time and reducing pollutant emissions.

A ball-cock wastegate valve uses a stress relief pocket in the crank arm to distribute bending forces evenly.

A burner-based exhaust generator system adjusts hydrocarbon speciation and concentration via supplemental fuel inlets.

Variable passage length compensates for radial velocity differences, resolving uneven heat transfer loss in the core unit.

Segmented gas conduits with universal connectors reduce rig-up time and manpower while maintaining reliable natural gas delivery to multiple engines.

Segmented catalyst structures containing noble metal particles and transition metal compounds prevent particle coagulation while maintaining catalytic activity.

A transmission assembly with a gear sub-assembly converts rotation between parallel and orthogonal axes in rotary piston devices.

A heating device with a non-smooth duct wall increases heat exchange surface area, accelerating reducing solution thawing and resisting vehicle vibrations.

Varying pitch turbulators optimize airflow distribution within charge air cooler tubes, preventing icing and condensation without increasing system size.

A pump with a deformable diaphragm and spring layer delivers liquid additives through mechanical displacement.

A warm-up device stores thermal energy from a heated purification catalyst in an insulated refrigerant reservoir for later reuse.

An orbital pump uses a rotating eccentric to press a deformable element against the housing, creating a sealed delivery duct for liquid conveyance.

Switching transfer functions during thawing resolves measurement inaccuracies caused by freezing conditions.

Post-weld insertion of an electrical adapter prevents heat damage to leads while grommets secure the connection.

A reagent dosing system pressurizes a secondary vessel volume using air pressure to supply urea for SCR applications.

A speech synthesis model registers user attributes to enable personalized voice generation.

Channel attention model extracts pedestrian body part features from global maps, eliminating detection overhead and improving accuracy in low-quality images.

A heat dissipating unit cools exhaust gas between catalyst stages to maintain optimal adsorption conditions.

A vehicle idling stop control system uses seat belt and door sensors to manage engine restarts based on driver presence.

Measures insulation resistance at trip start using baseline comparisons to diagnose electrically heated catalyst faults while reducing power consumption.

A control device monitors urea solidification likelihood to maintain cooling water circulation and prevent injection valve clogging.

Varying orifice sections and heights along the injection channel compensates for static pressure gradients, ensuring uniform gas distribution.

An air supply device injects oxygen between lean-NOx trap and selective catalytic reduction catalysts to oxidize reductive constituents.

A semi-integrated heat exchanger divides the intake plenum into isolated cavities to route separate air flows for each combustion chamber.

A soot loading model adjusts pressure drop measurements to estimate filter accumulation accurately.

Dynamic flow control devices route exhaust gas around the catalyst unit to minimize pressure losses and improve turbine responsiveness.

Segmented camshaft lobe profiles open the exhaust valve during compression to reduce cylinder pressure and fuel consumption.

Segmented stator vanes and sliding wall resolve the trade-off between variable incidence control and fixed efflux area, reducing turbulence losses.

A straight shaft rotary piston engine uses a non-planetating rotating piston to generate continuous torque within an expansible combustion chamber.

A variable turbine geometry cartridge uses a planar adjusting lever to transmit torque to an unison ring, distributing loads radially across vane shafts.

A vehicle engine stop control device segments speed thresholds to permit automatic coast stops during low-speed travel.

A catalytic wall-flow monolith filter uses a wedge-shaped platinum group metal coating to enhance three-way conversion activity.

Combining isolation forest with generalized super efficiency models identifies outlier vehicles, reducing manual intervention errors in quota allocation.

A motor vehicle pump monitoring method determines chemical agent concentration by analyzing the relationship between transmitted energy and applied pressure values.

Outlet-side catalyst coating reduces backpressure across diesel particulate filters by maintaining gas conductivity with large particle washcoats.

Integrated manifold design in sealed housing reduces leakage and pulsation for cryogenic fuel applications.

A vehicle control device switches driving power states to maintain speed on inclines.

Auxiliary scavenging ports admit fresh fuel-air mixture to the prechamber crevice volume, creating uniform high-velocity flow.

An intercooler cools exhaust gases between catalytic stages to condense hydrocarbons and prevent NOx reformation while storing ammonia for reduction.

A reversible pump empties a fluid conveying line by detecting ambient pressure, preventing freezing damage while minimizing energy consumption.

A controller coordinates auto-hold braking torque with engine stop-start cycles to optimize fuel efficiency during vehicle operation.

A car intercooler pipe uses varying wall thickness and material stiffness to attenuate vibration transmission.

Segmented engine units harness exhaust gas energy through rotary pistons, resolving sealing reliability and energy loss trade-offs.

Compressed air mixes with reductant in a dedicated chamber to equalize flow across apertures, preventing deficits during varying engine performance.

Segmented combustion zones control equivalence ratios to maintain flame stability while reducing nitrogen oxides in combined heat and power systems.